Dunsmuir, CA Cell Phone Coverage Map & Network Rankings (2026)

Don’t overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across Dunsmuir, CA zip codes, this guide compares the top-performing networks and the cheapest plans that use them.

Coverage rankings for Dunsmuir, CA

T-Mobile currently ranks first for coverage in this area, with a coverage score of 95.3. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.


RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile95.3100.0%100.0%97.4%82.1% -86 dBm
2AT&T72.3100.0%100.0%41.0%41.0% -111 dBm
3Verizon55.8100.0%100.0%0.0%0.0% -96 dBm

Scores include coverage area, network type, and average signal strength.


Cell phone coverage map for Dunsmuir, CA

Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.

Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.

Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Compare Wireless Carriers.

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Cell phone coverage by network in Dunsmuir, CA

#1

T-Mobile

Coverage Score 95.3
In Dunsmuir, CA
Overall
100.0%
4G LTE
100.0%
5G
97.4%
Fast 5G
82.1%
Average Signal -86 dBm
Siskiyou County, CA covered 34.6%
#2

AT&T

Coverage Score 72.3
In Dunsmuir, CA
Overall
100.0%
4G LTE
100.0%
5G
41.0%
Fast 5G
41.0%
Average Signal -111 dBm
Siskiyou County, CA covered 39.1%
#3

Verizon

Coverage Score 55.8
In Dunsmuir, CA
Overall
100.0%
4G LTE
100.0%
5G
0.0%
Fast 5G
0.0%
Average Signal -96 dBm
Siskiyou County, CA covered 50.0%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Coverage by ZIP code in Dunsmuir, CA

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP CodeAT&TT-MobileVerizon
96025 72.4% 72.4% 35.5% 19.3% -115 dBm 59.3% 59.1% 51.3% 38.6% -91 dBm 74.4% 74.4% 0.2% 0.0% -96 dBm
96067 91.9% 91.9% 54.8% 19.0% -115 dBm 81.1% 79.7% 77.8% 57.1% -90 dBm 97.5% 97.5% 2.1% 1.1% -94 dBm

About The Coverage Data

Coverage and signal estimates are derived by Compare Wireless Carriers from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of Dunsmuir, CA where that carrier has coverage.

If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.